What question did this study set out to answer?

To determine the biological distribution, dietary sources, and fundamental chemical properties of the antihemorrhagic factor designated as vitamin K.

May 1, 1936Biochemical JournalOpen Access

The occurrence and chemical nature of vitamin K.

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Laboratory study uncovers the distribution and chemical behavior of vitamin K in animal tissues, highlighting its unique antihemorrhagic properties.

To determine the biological distribution, dietary sources, and fundamental chemical properties of the antihemorrhagic factor designated as vitamin K.
Extracted and fractionated lipid components from diverse plant tissues and animal organs.
Assayed antihemorrhagic potency using dietary deficiency models in chicks to monitor clotting response.
Identified rich concentrations of the active substance in green plant leaves and animal liver fractions.
Demonstrated that the active factor exhibits fat-soluble, non-sterol properties distinct from vitamins A, D, and E.

Dam et al. (1936) studied this question.

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Laboratory study uncovers the distribution and chemical behavior of vitamin K in animal tissues, highlighting its unique antihemorrhagic properties.